Provisioning: expand Android gradle cache project

Add an :app and :lib modules so both com.android.application
and com.android.library paths are exercised, and add a Kotlin
source + JUnit test in each module. This makes gradlew build
pull the kotlin toolchain jars (compiler-embeddable, reflect,
coroutines) that Qt Android JAR and app builds could need
later. This way we ensure all possible artifacts are made
available in the cache during provisioning and avoid or at
least reduce the chances or later downloads.

Task-number: QTBUG-132915
Change-Id: Ic518f96370ffc40f921bcb3063257f8663e41615
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

coin/provisioning/common/shared/gradle/project/lib/build.gradle

@@ -0,0 +1,17 @@
+plugins {
+    alias(libs.plugins.android.library)
+}
+
+android {
+    namespace = 'org.qtproject.qt.gradlecache.lib'
+    compileSdk = 36
+
+    defaultConfig {
+        minSdk = 28
+    }
+}
+
+dependencies {
+    implementation libs.core
+    testImplementation libs.junit
+}

coin/provisioning/common/shared/gradle/project/lib/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+</manifest>

coin/provisioning/common/shared/gradle/project/lib/src/main/kotlin/org/qtproject/qt/gradlecache/lib/Lib.kt

@@ -0,0 +1,5 @@
+package org.qtproject.qt.gradlecache.lib
+
+object Lib {
+    fun hello(): String = "hello"
+}

coin/provisioning/common/shared/gradle/project/lib/src/test/kotlin/org/qtproject/qt/gradlecache/lib/LibTest.kt

@@ -0,0 +1,11 @@
+package org.qtproject.qt.gradlecache.lib
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class LibTest {
+    @Test
+    fun hello() {
+        assertEquals("hello", Lib.hello())
+    }
+}